Arizona Republic reporter Anne Ryman, who lives in Deer Valley,
reported seeing four lights in a square shape that eventually became a
triangular shape. The lights were moving to the east and they
disappeared one by one. She said the lights were visible for about 13
minutes at about 8 p.m...

Ian Gregor, a spokesman for the Federal Aviation Administration said
that air traffic controllers at Sky Harbor Airport also witnessed the
lights, but they do not know the cause.

The incident is similar to the "Phoenix Lights" seen on March 13, 1997.
Thousands of residents reported seeing a mile-wide, v-shaped formation
of lights over the Valley. In that case the lights appeared about 7:30
p.m. and lasted until 10:30 p.m.

My friend Brink helpfully sent me an email this morning saying, "The UFOnauts are coming. Watch out for anal probes." Always good advice, I guess.